CentOS8提高篇16:centos8离线安装docker

1、下载docker的安装文件

https://download.docker.com/linux/static/stable/x86_64/](javascript:void(0))

下载安装文件:docker-18.06.3-ce.tgz

2、 将下载包上传到服务器

通过各种ftp上传工具。如:FinalShell、Xftp等;

3、解压下载包

tar -zxvf docker-18.06.3-ce.tgz

4、将解压出来的docker文件复制到 /usr/bin/ 目录下

cp docker/* /usr/bin/

5、进入/etc/systemd/system/目录,并创建docker.service文件

cd /etc/systemd/system/

 Vi   docker.service

6、打开docker.service文件,编辑内容(复制粘贴即可):

[Unit]

Description=Docker Application Container Engine

Documentation=https://docs.docker.com

After=network-online.target firewalld.service

Wants=network-online.target

 [Service]

Type=notify

# the default is not to use systemd for cgroups because the delegate issues still

# exists and systemd currently does not support the cgroup feature set required

# for containers run by docker

ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

ExecReload=/bin/kill -s HUP $MAINPID

# Having non-zero Limit*s causes performance problems due to accounting overhead

# in the kernel. We recommend using cgroups to do container-local accounting.

LimitNOFILE=infinity

LimitNPROC=infinity

LimitCORE=infinity

# Uncomment TasksMax if your systemd version supports it.

# Only systemd 226 and above support this version.

#TasksMax=infinity

TimeoutStartSec=0

# set delegate yes so that systemd does not reset the cgroups of docker containers

Delegate=yes

# kill only the docker process, not all processes in the cgroup

KillMode=process

# restart the docker process if it exits prematurely

Restart=on-failure

StartLimitBurst=3

StartLimitInterval=60s

[Install]

WantedBy=multi-user.target

7、授权执行权限

chmod +x /etc/systemd/system/docker.service

8、重载systemd下docker.service文件

systemctl daemon-reload

9、安装完成,启动Docker

# 启动docker

systemctl start docker

10、设置开机启动

systemctl enable docker

11、查看docker状态

systemctl status docker

12、 查看docker版本

docker –v

13、完成大赛试题

1)在Linux2上安装docker-ce,导入centos镜像。软件包和镜像存放在物理机D:\soft\DockerLinux。

(2)创建名称为skills的容器,映射Linux2的80端口到容器的80端口,在容器内安装apache2,默认网页内容为“HelloContainer”

[root@bogon opt]# docker load -i CentOS-8-Container-8.3.2011-20201204.2.x86_64.tar.xz

[root@bogon opt]# docker images

[root@bogon opt]# docker run -d --name skills --privileged -p 80:80 centos-8-container-8.3.2011-20201204.2.x86_64 /usr/sbin/init

[root@bogon opt]# docker ps –a

CONTAINER ID        IMAGE        COMMAND              CREATED              STATUS                      PORTS                  NAMES

a8ea46e12944        centos-8-container-8.3.2011-20201204.2.x86_64   "/bin/bash"          About a minute ago   Exited (0) 12 seconds ago                          skills

[root@bogon opt]#docker start skils

[root@bogon opt]# docker  exec -it skills /bin/bash

[root@2609c52aa339 /] #vi 修改

进入 cd /etc/yum.repos.d/:

CentOS-Linux-BaseOS.repo

CentOS-Linux-AppStream.repo

CentOS-Linux-Extras.repo

将上面的三个文件中的baseUrl中的mirror.centos.org 替换成 vault.centos.org

[root@2609c52aa339 /] #yum clean

[root@2609c52aa339 /] #yum makecache

[root@2609c52aa339 /]# yum -y install httpd

[root@2609c52aa339 /]#cd /var/www/html

[root@2609c52aa339 /]#echo "this is my web!">index.html

[root@2609c52aa339 /]#systemctl start httpd

[root@2609c52aa339 /]# cat /etc/hosts                               

127.0.0.1       localhost

::1     localhost ip6-localhost ip6-loopback

fe00::0 ip6-localnet

ff00::0 ip6-mcastprefix

ff02::1 ip6-allnodes

ff02::2 ip6-allrouters

172.17.0.2      ceb9f843885b

[root@2609c52aa339 /]#curl http://172.17.0.2

this is my web!

[root@2609c52aa339 /]#exit

[root@bogon opt]# docker ps –a

docker ps -a

CONTAINER ID        IMAGE                                           COMMAND             CREATED             STATUS                         PORTS                  NAMES

250013c8ee7c        centos-8-container-8.3.2011-20201204.2.x86_64   "/usr/sbin/init"    7 minutes ago       Up 7 minutes                   0.0.0.0:8080->80/tcp   skills

最后在本地计算机上打开浏览器:http://192.168.4.200:80

显示:this is my web!

14、docker 安装httpd

[root@bogon ~]#docker pull httpd

[root@bogon ~]# docker run -d --name web -p 8080:80 httpd

 [root@bogon ~]# docker ps -a

CONTAINER ID        IMAGE               COMMAND              CREATED             STATUS              PORTS                  NAMES

3f67fdc71d71        httpd               "httpd-foreground"   8 seconds ago       Up 4 seconds        0.0.0.0:8080->80/tcp   web

本地计算机上打开浏览器:http://192.168.4.200:8080

CentOS8提高篇16:centos8离线安装docker_第1张图片

 

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